Computer scientists at the University of Waterloo have created a device for wearable computer input suitable for many situations, just by touching your fingertips together in different ways.

The input portion may also be operable to receive z axis input data in the second mode. In one example, the multi-function input device may have a button mode and a joystick mode.

Our favorite is the tablet PC controlled by moving your finger on the back side of the device, instead of interrupting your line of sight and leaving fingerprints by touching the screen.

3. Reset the PRAM The computer's PRAM settings may have been changed during a firmware update, so be sure to reset them. These settings include those for some peripheral devices, as well as audio ...